Nasrudin had said it was unfair for the Kinrara-Damansara expressway (Kidex) to have received that much of scrutiny as it was in fact a project initiated by the Federal Government unlike the Subsea Penang tunnel project which was directly under the purview of the Penang Government.

The DAP secretary-general said he was shocked by the unprovoked attack launched by Nasrudin with regards to the finances of the Penang state government and the award of contracts in regards to the tunnel project.

"My lawyers will proceed with the legal action for defamation against Nasrudin for spreading blatant slander and lies against me and the Penang state government,” he said.

On Friday, the unapologetic Nasrudin said his statement was based on public data collected.

"Therefore, Lim’s claim that I had defamed and lied has no basis whatsoever,” he said in a Facebook posting.